Question

A submarine was cruising at a depth of 153 m. It then rose at 4.5 m/min for 15 min.

What was the submarine's depth at the end of this rise?

If the submarine continues to rise at the same rate, how much longer will it take to reach the surface?
153 - (4.5)15 = ?

? - (4.5)X = 0

You can do the calculations.

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